Sarah, The short answer is that, yes, you can substitute butter for shortening in cookies. It will, however, change the texture and appearance of the end product. Because shortening is 100% fat and butter is roughly 85% fat and 15% water, cookies with butter in them tend to spread more during baking.
Usage: Yang is a popular first name. It is more often used as a boy (male) name. People having the name Yang are in general originating from China, France, South Korea, United States of America.
Kao Kalia Yang, a young Hmong Minnesotan, tells the tale of her family's escape from Laos to refugee camps in Thailand in the 1970s, her birth in Ban Vinai camp, and the family's struggles in the U.S. after relocating there when Yang was six.